8 letters · 16 points in Scrabble
verb be central or dominant
verb form an arch over
originEtymology tree Proto-Indo-European *úp Proto-Indo-European *-er Proto-Indo-European *upér Proto-Germanic *uber Old English ofer- Middle English over- English over- English arch English overarch From over- + arch.
Etymology from Wiktionary, CC BY-SA 3.0